Snowplow with top discharge



P 1930. J. o. JOHNSON 1,754,322

SNOWPLOW WITH TOP DISCHARGE Filed July 6, 1926 3 Sheets-Sheet 1 I N VE/VT017. JOHN 0. cTOHIYJfl/I.

April15, 1930. "J. o. JOHNSON 1,754,322

SN OWPLOW WITH 'IOP DISCHARGE Filed July 6, 1926 5 Sheets-Sheet 2 April1930. .1. o. JOHNSON 1,754,322

SNOWPLOW WITH TOP DISCHARGE Filed July 6, 1926 5 Shee'ts-Sheet 3Patented Apr. 15, 1930 I -UNrr-Eo STATES Jor'm o. .ronnson, or Mmnmroms,MINNESOTA, assmnon; BY mEsNE ASSIGN- MENTS, 'ro ENTERPRISE HOLDINGCOMPANY, or MINNEAPOLIS, MmNEso'rA, A

CORPORATION OF MINNESOTA snowrnow wrrn 'ror DISCHARGE,

. Application filed July 6,1926. Serial No. 120,603.

- This invention relates to a snow plow, and

- particularly to a snow plow adaptedtoclear highways.

It is an. object of this invention to provlde .asnow plow having a frontcentralprow portion and laterally and rearwardly extending mold boardsleading to semi-cylindrical chambers in which are disposed rotatingmeans adapted to receive and propel the snow upwardly throughconduitsleadlng up-' ward from said chambers. i

It is afurther object of the invention to provide a snow plow such asset forth in-the preceding paragraph, together withmeans at the top.of-said conduits adapted to direct the snow'propelled therefrom indlfierent directions, as to either'side of'the roadway Itis anotherobject of the invention to provide a simple and efficient structure ofrotary snow propelling means;

It is still another object of the invention to provide a snow .plowhaving mold boards and rotary snow propelling means adjacent thereto,together with adriving means for said propelling means adapted to beconnected to and driven from the motor shaft ofan autom obile,\said plowbeing, provided with driving shafts for said propelling means andcontrolling devices by means of which said driving shafts may beconnected or disconnected to said propelling means to throwthe same intoor out of operation.

It is still a further object of the invention to provide a frame forsaid plowadapted to .be'connectd to pushing embers for mov-' ing theplow and arranged to tilt'the plow and to absorb some of the vibrationthereof. It is still another object of the invention to provide a simpleand eiiicient means for adjustingthe front portion of the plow.

These and other objects and advantages of the invention will be fullysetforth in the following description made inxconnection with theaccompanying drawings, in'which like reference characters refer to.similar parts throughout the several views and in which:- A q Fig. 1i'sa stop plan View 'ofthe plow;

Fig. 2 is-a view in side elevation thereof,

some parts being broken away and othersshown in vertical section;

- Fig. 3 1s a partial view in front elevation of the plow'as seen fromthe left of Fi .2;

Fig. 4 isa plan view of a portion 0 the plow; v i Fig. 5 is a verticalsection taken substantlally onhne 55 of Fig. 1, as indicated'by thearrows a elevating mechanism for the front of the j p Fig. 6 is a viewpartly in plan and partly in horizontal section of the central portionofFig. 1, shown on an enlarged scale; and

Fig.' 7 is a vertical section taken substantially on line 7-7 of Fig. 1.

Fig. 8 is a horizontal section taken on line =8'8 of Fig. 2, asindicated'by the arrow;

and Fig. 9 is a Vertical section taken on the l1ne'9-9 of Fig. 4, asindicated by the arrow.

Referring to the drawings, the plow comprises a prow portion 10 and inthe embodi- Inent' of the invention illustrated, this prow portion isformed by a pair of plates having rectilinear edges 10* bent intovertical planes and secured by aplurality of rivets 10 said edgesextending. upwardlyandrearwardlyin i an inclined direction. Said plates,which are designated as 10 and 10, form mold boards which extendrearwardly and laterally from the said front edges 10* and are curvedinto partial cylindrical or conical form and have their outer edges 10and 10 respectively -substantially semicircular in shape and disposedinvertical planes. As shown in Figs. 2 and 7, the edges 10 extend ina-straight line from-the lower'front portion of the plow totendapproirimately throughout a half circle or sllghtly more than a halfcircle. A semicyllndrlcal plate 11 has one edge alined with the outeredges of each of the edges 10 and .boards which are closed by the plates12 at the top thereof, and the edges l'O 'and 10 exi their outer. sides.The plate 12 extends up- .wardly above-the plates 11- with verticalfront and rear edges and forms the outer 1 and segmental shaped 'side.havinga sma side of a rectangular chute 13-disposed directly over saidplates 11 and said semi-cylindrical chambers, the inner side of which isformed by the plate 12" and the front and rear sides by the plates 12and 12 respectively. .Triangular brackets 14 are secured at each end ofthe chute 13 to the plates 12 and 12 respectively and snow deflectingmembers 15 are pivoted to the upper ends of said brackets 14 on thepivots 16 having a common horizontal axis. The members 15 have curvedsemi-cylindrical top portions rtions and their ends are adapted to overap the sides of the chute 13 as shown in Fig. 3.

' The mold board plates 10 and 10 have extending therethrough andsupported therein casings 17 having end closing members 18 formingbearings for shafts 19. A sleeve extends betweenand is journaled in theGas- 17 and is splined to receive the inner en of the shafts 19 whichare provided with a plurality of keys fitting in the splines in saidsleeve. The sleeve 20 has a gear 21 secured thereto b which it isdriven, the sleeve thus dri e shafts 19. A casing 22 is secured to erear side of the casings 17 and forms the bearin for a shaft 23 havingits rear end 'ro'vide with a plurality of keys, which en is adapted tobe connected by'suitable coupling and universal joint tothemotor shaftof the propelling-automobile. The shaft 23 has a pinion 24 secured toits end and in the casin 17' meshing with r 21and adapted to rive'thesame. -The afts 19 at their outer ends have secured thereto rotary snowpropellin members 26. While these members may variouslyconstructed, inthe embodiment of the invention illustrated, each member is shown ascomprising a hub'casting 27 having circular flanges 27' ateach end andprovided with suitable anti-friction bearings 28 adjacent each endforming the bearings for a sleevebearing 29 which encloses the shaft 19.A driving member 30 is secured to one end of the hub 27 having anangular socket or opening at its center in which an angular portion 19of shaft 19 is adapted to fit, the shaft 19 having a cylindrical portion19" beyond the portion 19 slidable in a cylindrical bore m a cap member31 secured to the outer side of the member 30, which member 31 has acylindrical exterior surface fitting in and runin'a 32 secured to theinner side of tile plate 12. Member 31 also has a small cylindricalprojection at its outer end extending throu h anaperture in late 12 andlfoollar 33 pinned t ereto. The

shafts 19 each have secured thereto in the casing 17 clutch collars 84and a pair of clutch levers 35. are pivoted in on the membore 17 andextend throu openin s in the members 17 having forke inner en engagingthe collars 84. The levers 35 have operating handles projectingrearwardly. The hub 27 has secured to the flange at its outer end a sider member 36 having an outer circular ange 36. A seriesv of plates 26are secured to the flange 36 and to the flange 27 at the inner side ofthe hub member 27. The plates 26 are bent to be of trough shape as shownin Fig. 2 with their greatest width adjacent the flange 36, the saidplates tapermg in width toward their outer ends so as to besubstantially scoop-shaped. At their outer sides the plates 26 have endportions or lugs 26 extending to the outer side of the flange 36" boltedor riveted thereto and at their inner sides the plates have end portionsor lugs 26 extending inwardly to and bolted or riveted to the innerflange 27" as shown in Fig. 2. A bracket 37 is provided having anarcuate flange 37 fitting theinner side of the flange 36 and securedthereto by the same bolts securin the lug 26". The bracket ex tendsinwardly around the rear of the blade or plate 26 and has a lug 37 atits inner end by which it is also secured to said plate. The plates 26are thus effectively braced by the brackets 37.

The plates 10 and 10 are supported upon and secured at their lower edgesto a shoe 38 having a shoulder formed thereon against which the edges ofsaid plate abut, member 38 exteudin laterally and rearwardly with theedges 0 the plates 10 and 10 and ex- "tending under the plates 11, therear end of member 38 being formed with apertured lugs 38' to whichthepush members 39 are secured. The members 39 will be attached at theirother ends in some suitable manner to an automobile truck or tractoradapted to push the plow; The members 38 have secured thereto andextending-therebetween a heavy angle bar 40. Each of the plates 10 and10- has secured to its rear. side a frame 41 comprising a curved anglebar' 41 riveted to said plates. The frame 41 which issubstantiallytriangular, has a lower rearwardly extending arm 41 having a recess inits outer end in which is disposed a nut block or member 42. The frame41 has pivoted to its upper end a rearwardly extending bar 43 also avingan apertured lug 43' at its rear end.

The bar 43 also has a vertically extendin hub 43" bored to receive theupper end 0 screw shaft 44 extending therethrough and downwardly intothe nut 42. The shaft 44 has a collar 45 pinned intermediate its ends,between which and washer 46 engaging the lower side of the hub 43 isdisposed a compression coil sprin 47. The frames 41.are connected bycross ars 47 as shown in Fig. 1. The member 38 has at its front portionin the rear of the plates 10 and 10 a pair of upwardly extending lugs 38between which is pivoted the front end of a lever 47 extendingrearwardly and u wardly and having its upper rear end em raced by a nutmember 48*' through which passesa screw 49,

which screw passes through lever 47 and.

extends upwardly through a bearing member 50 secured to the rear ofplates and 10, sald screw 49 having a squared upper end projettingthrough annaperture 10 1n the front --of the plow, adapted to receive asuitable socket Wrench. A shoe comprising a plate '51 is provided, whichhas its front and rear ends curved upwardly and has a post 52 pivotedinlugsjadjacent its central portion the v upper end of which post isembraced by the lever 47 intermediate the ends thereof. The

, plate 51- has .journaled therein a plurality of rollers 53 carried onshafts '54 journaled in lugs on said plate, said rollers extendin.through openings in said plate, and adapte to engage the ground orsupporting surface for the plow.

In operation, the plow will be propelled by atractor Or other meanshaving members connected to the lugs 38 and 43. The shaft 23 as statedwill be driven from the motorof the automobile and the shaft 19 willthus bedriven and will drive the propelling means upwardly at the rearof the plates 11 and into -.the chute 13. -With the plow disclosed inapplicants prior Patent, 1,524,518, the snow is simply discharged ateach side of the roadway. It is sometimes desired-to load the snow andremove the snow, as when the snow is cleared from city streets. It hasalso been found in practice that if a strong wind is blowing across'theroad, it isdiflicult to discharge the snow laterally to one side of theroad with the plow shown in applicants prior patent. The members 15 arethus provided, which'will direct the'snow in difierent'directions. Whenthe member '15 is-disposed as shown in full linesin Fig. 3, the snowwill be, deflected to the outer side or the same side,

of the plow on which 'member 15 is disposed. If the member 15 isdisposed as shown in .dotted lines in Fig. 3, the

snow will be directed across the top- 'of the plow to the other side ofthe road. If a wind be blowing across the road, therefore, and acrossthe plow, the member 15 can be disposed as shown in the dotted lines andthesnow will thus be elfectively delivered at the opposite side of theroad and the opposite side of the plow from that on which the member 15.is mounted. At this time the member 15 on the other chute 15 will beturned in the same direction. The members 15 can 'alsobe used when it isdesired to load the snow and will direct the snow to' one side in acomparatively narrow stream so that a wagon or truckcan practiceand'found to As theplow is propelled along there is considerablevibration of the front end as the plow moves over the inequalities inthe road surface, and some of the shock of this vibration willbe'absorbed by the sprinv 47. It will freely swing be noted that thelink 43-cannot downwardly about its pivot, owing to the fact that theshaft 44 extends through the hub 43". The'shaft 44 can be turnedby theapplication of a wrench to its'upper end 'to bring the lug 43'and arm 41closer together or farther apart. As the lug 43 will'be fixed byattachment to the tractor, this action willdrive alongside of the plowand receive the tend to respectively raise or lower the member 41 -andframe 41 to elevate or lower. the

rear end of the plow. The pusher bars 39.wi1l

be connected to a bar (not shown) extending transversely of the tractor,while the members connected to. lugs 43 extend to, the tractor frame, 1

It is sometimes-desired to leave some snow on the road and the front endof the plow can be elevated as desired by turning of the screw 49 by asuitable wrench. The front end of.

By shifting the" levers 35, either shaft. 19 j can be connected ordisconnected from its propeller 26. When the shafts 19'are moved end- Iwise so that the angular portion 19 moves out of registry with themember 30, the propeller will not be driven. The plow can thus bequickly changed to operate with one or can be thrown out of action ifdesired.

From the above description it is seen that applicant has provided asimple and efiici'ent snow plow and one which will quickly remove thesnow and effectively dispose of the both of the propellers 26 and bothpropellers samel The plow is constructed of comparatively' few parts andthese can be simply and ruggedly madeso that theplow will endure theheavy duty to which it is subjected. The device has been amply.demonstrated in actual be Very successful and etficient.

It will, of course,be understood that various changes may be made in theform, details, arrangement and proportions of 'the parts,

without departing" from the scope of apph- '120 sists in a device caable of carrying out the cants invention, which, generally stated,conobjects above set orth, in the novel parts and combinations of partsdisclosed and de-' fined in the appended claims; What 'is claimed is 1.A snow plow having in combination, a

prow portion having a central rearwardly inclined edge extendingupwardly at an angle of less than 45 degrees to the vertical, a'curvedmold-board extending laterally and rearwardly at each side of said edge,a semi-cylindrical casing at the outer end of each mold board andsubstantially continuous therewith, having its outer side closed, aconduit extending upwardly from each of said casings having an openupper end, rotary snow propelling means adjacent -the outer end of eachmold board and disposed in said casing for receivin the snow from'saidmold board and proplling the same'upwardly in said conduits and pivotedswinging means at the top of each conduit for directing the snow inopposite directions.

2. A'snow plow having in combination, a front prow portion having acentral upwardly and rearwardlyinclined rectilinear edge, a curved moldboard extending laterally and rearwardly from each side of said edge andterminating in a semi-cylindrical edge disposed in a vertical planeparallel to the longitudinal center line of said plow, a semicylindricalcasing at the outer end of each mold board extending continuoustherewith, a vertical plate at the outer side of each of said casings,shafts. extending transversely of said mold boards and casings, andconcenv tric therewith, rotary means comprising substantially radialextending trough-shaped snow propellers carried by each shaft anddisosed adjacent the outer end of said mold oardsand in said casings,ing vertically from each of said casings open at their upper ends andadjustable swinging deflecting plates at the top of said conduits'for-directing-the snow to either side of said plow.

3. A snow plow having in combination, a front prow portion, a laterallyand rearwardly extending mold board at each side of sa d portion, endwalls at theouter sides of said plow, conduits extending upwardly abovesaid propelling means and hav ng open upper ends, rotary snow propellingmeans ad acent the outer end of each mold board for receiving snowtherefrom and directing the same upwardly in said conduits, and swingingsegmental trough-shaped members pivoted inter-" mediate their ends abovesaid conduits adjustable to direct the snow to either side of said plow.t

4. A snow plow having in combination, a mold board extending laterallyand rearwardl at each side thereof, a rotary snow prope ler rotatable.about a horizontal axis and held from lateral movement adjacent the{outer end of eachof the mold boards, a driving shaft for each of saidpropellers adapted to be connected and disconnected to its respectivepropeller by a longitudinal sliding movement, means for moving eachshaft lon gitudinally, a gear connected to said shafts for driving thesame, a pinion meshing with said gear and a shaft for drivingsaid pinionprojecting at the rear of the plow and adaptconduits extended to beconnected to the motor shaft of an automobile. I

5. The structure set forth in claim 4, each of said propellers having acentral hub, an angular socket in said hub, an angular portion on eachof said shafts adapted to move into and out of engagement with saidangular socket to connect or disconnect said shaft and propeller.

6. A snow plow having in combination, laterally andrearwardly extendingmoldboards moving the rear end of said-link toward and from the rear endof said arm when-said link is connected to said pusher member and heldfrom vertical movement thereby to raise and lower the rear end of saidplow.

7, The structure setforth in claim 6, said last mentioned means comrising a screw shaft extending through a re in said link and engagingthe nut held in the said arm.

' 8. A snow plow having in combination, laterally and .rearwardlyextending mold boards diverging from a central front edge, means at'therear of each mold board and adacent their outer ends and bottom edgesadapted to be connected to a pusher member,

a frame secured to the rear of each mold board and having means extendinoutwardly at the top thereof adapted to e secured to a pusher memberandresilient means between said last mentioned means and the bottom of saidframe for absorbing the .vi-

bration of said plow as it moves over the road.

9. A snow plow having in combination, a front prow portion and moldboards extendlnglaterally and rearw-ardly therefrom, a shoe having aground engaging means disposed in the rear of said prow, a lever pivotedat one end to said prow, extendin rearwardly, a support for said leveron said shoe,

and adjustable means connected to the other I end of said lever to movethe same to raise and lower said prow portion.

10. The structure set forth in claim 9, and a roller revolubl carried bysaid shoe-at each side of sai said ground engagin means.

11. A snow plow aving in combination,

a prow portion having a central upwardly and rearwardly'inclined edge, acurved mold board extending laterally and rearwardly at the side of saidedge, a semi-cylindrical cas ing at the outer end of each mold board andsupport and constituting I l rotary member disposed moved by continuoustherewith having its outer side closed, a conduit extending from saidcasing having an open outer end, rotary snow propelling means adjacentthe outer end of said mold board and disposed in said casing forreceiving the snow from said mold board, and propelling it through saidconduit and means at the outer end of said conduit for directing saidsnow laterally.

12. A snow plow having in combination a rotatable snow propelling means,comprising a plurality of members trougl1-shaped in cross section, saidmembers extending radially and tapering in depth toward their outerends, an annular member at one side of said members to which they arerespectively connected, and means at the other side of said members towhich they are connected at said latter side.

13. The structure set forth in claim 12, and a bracket disposed in therear of each of said trough-shaped members shaped to embrace the sameand secured thereto, said bracket being secured to said annular member.

14. A snow plow having in combination, a laterally extending mouldboard, a substantially semi-cylindrical chamber at theouter end of saidmould board to which the snow is said mould board, said chamber havingits outer end closed, a conduit extending upward from the top of saidchamber, a in said chamber with its axis substantially coincident. withthat of said chamber, said member having curved blades adapted toengagev the snow at the front and direct it upwardly substantiallytangentially into said conduit.

15. A snow plow having in combination, a laterally extending mouldboard, a substantially semi-cylindrical chamber at theouter end of saidmould board to which the snow is moved by said mould board, said chamberhaving its outer end closed, a conduit extendi-ng upward from the top ofsaid chamber,

arotarymember disposedin said chamber with its axis substantiallycoincident with that of said chamber, said member having substantiallylateral trough shaped blades, said blades having advanced edges at oneside adapted to engage the snow at the front of said member anddirectthe same upwardly into said conduit.

16. A snow plow having in combination laterally and rearwardly extendingmold boards meeting in a central front edge, a frame rigidly mold boardat an intermediate point thereon, said frame having an arm rigidtherewith projecting rearwardly from its lower portion, an arm pivotedto the upper portion of said frame and extending rearwardly therefromadapted to be connected to a pusher member, and means extending betweensaid arms for relatively moving the same.

17. A snow plow having in combination, a

secured to the rear side of each front prow portion having a centralupwardly and rearwardly inclined rectilinear edge, a curved mold boardextending laterally and rearwardly from each side of said edge, asemi-cylindrical casing at the outer end of each mold board extendingcontinuous therewith, a vertical plate at the outer side of each of saidcasings, shafts extending transversely of said mold boards and casingsand concentric therewith, rotary snow propelling means carried by eachshaft and disposed in said casings and conduits 7 extending verticallyfrom each of said casings open at their upper ends through which show isdischarged by said propelling means.

In testimony whereof I affix my signature.

JOHN O. JOHNSON.

